Volkswagen Golf / Golf GTI / Jetta. Manual — part 162

01-190

Display group 2 - Basic functions - Mass Air Flow (MAF) Sensor

Engine running at idle

Read measured value
block 2

Indicated on

display

xxxx rpm xxx.x % ---

xx.x

g/s

1

2

3

4

Display zones

Specification

Evaluation

Air mass drawn in

3.0...5.0 g/s

Page 01-

191

No display

---

---

Engine load

12.0...26.0 %

Page 01-

201

Engine speed (idle speed)

640...720 rpm

Page 01-

188

Note on display zone 2:

The engine load at idling is given as the specification.

Note on display zone 4:

Displayed is the air mass measured by the Mass Air Flow (MAF) Sensor -G70-.

Measured value (data) blocks

01-191

Evaluating display group 2, display zone 4 - Mass Air Flow (MAF)

Appears on

display

Possible cause

Corrective action

Less than

specified

Large amount of unmetered air

between intake manifold and Mass Air
Flow (MAF) Sensor -G70-

- Repair unmetered air

Greater than

specified

Gear selected (automatic

transmission)

- Place selector lever in P
or N

Engine loaded due to accessories

- Eliminate load (air
conditioner, power
assisted steering etc.)

Measured value (data) blocks

01-192

Display group 3 - Basic function - Mass Air Flow (MAF)

Engine running at idle

Read measured value
block 3

Indicated on

display

xxxx
rpm

xx.x

g/s

xx.x

%

xx.x

C

1

2

3

4

Display zones

Specification

Evaluation

Ignition timing
angle

4.0...15.0

BTDC

---

Throttle valve angle

Angle sensor -1- for throttle
drive -G187-

0.2...4.0 %

Page 01-

202

Air mass drawn in

3.0...5.0 g/s

Page 01-

191

Engine speed (idle speed)

640...720 rpm

Page 01-

188

Note on display zone 2:

Displayed is the air mass measured by the Mass Air Flow (MAF) Sensor -G70-.

Note on display zone 3:

Display values must be approx. 100% when accelerator pedal is fully depressed.

Measured value (data) blocks

01-193

Display group 4 - Basic functions

Engine running at idle

Read measured value
block 4

Indicated on

display

xxxx
rpm

xx.xxx

V

xxx.x

C

xxx.x

C

1

2

3

4

Display zones

Specification

Evaluation

Intake air
temperature

-37.0...126.0

C

Page 01-

196

Coolant temperature

80.0...110.0 C

Page 01-

195

Voltage supply for Motronic Engine
Control Module (ECM) -J220-

11.500...15.000

V

Page 01-

194

Engine speed (idle speed)

640...720 rpm

Page 01-

188

Note on display zone 4:

The total temperature range is given as the specification. The displayed value must be
above ambient temperature.

Measured value (data) blocks